Description: 1 just found the perfect I2C sensor, and you want to wire up two or three or more of them to your Arduino when you realize “Uh oh, this chip has a fixed I2C address, and from what I know about I2C, you cannot have two devices with the same address on the same SDA/SCL pins!” Are you out of luck? You would be, if you didn’t have this ultra-cool TCA9548A I2C 1-to-8 I2C multiplexer. 2lly, a way to get up to 8 same-address I2C devices hooked up to one microcontroller – this multiplexer acts as a gatekeeper, shuttling the commands to the selected set of I2C pins with your command. 3g it is fairly straight-forward: the multiplexer itself is on I2C address 0x70 (but can be adjusted from 0x70 to 0x77) and you simply write a single byte with the desired multiplexed output number to that port, and bam – any future I2C packets will get sent to that port. In theory, you could have 8 of these multiplexers on each of 0x70-0x77 addresses in order to control 64 of the same-I2C-addressed-part. 4 all Adafruit breakouts, we put this nice chip on a breakout for you so you can use it on a breadboard with capacitors, and pullups and pulldowns to make usage a snap. Some header is required and once soldered in you can plug it into a solderless-breadboard. The chip itself is 3V and 5V compliant so you can use it with any logic level. Specification: Interface: I2C IIC Chip: TCA9548A Selectable I2C address: 0x70-0x77 Working Voltage: 1.65-5.5V Max Clock Frequency: 400 KHz Package Included: 5 x TCA9548A I2C IIC Multiplexer Breakout Board
Additional information
| Weight | 0.053 kg |
|---|---|
| brand | Youmile |
| dimensions | 8.3 x 5.8 x 1.1 cm; 53 Grams |